In this subsection, we check the validity of the assumption that
the contribution of the DVCS amplitude squared is negligibly small by explicitly
calculating the DVCS cross section within the GVMD model
in the Jefferson Lab kinematics.
The DVCS cross section at the lepton level reads, see e.g. [1]},
\(\frac{d^4 \sigma }{dQ^2 dx_B dt d \phi }=\frac{\alpha _{{\rm e.m.}} (1-y+y^2/2)}{\pi Q^2 x_B} \frac{1}{2 \pi } \frac{d \sigma _{{\rm DVCS}}(W,Q^2,t)}{dt} \,,\) 
